Lots of good questions, I will try to answer them all.
Undaunted wrote:
enemy had na +sa and I guess you had big area too so he knew you were enemy from last oneshe had no spies and he couldn't see your long journey over sea with cruisers and destroyers ??
from africa to america how many hours need to disembarking ??
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even you had armored cars as anti air , your frontier stacks are weak against attack bombers
so your experienced enemy hadn't any attack bomber ?
The enemy was not communicating, and not trying to ally with anyone. He was complacent, thinking he would win, and he had every reason to think so. His stacks of level 2 motorized arty + rocket arty were working. He had level 4 AC's to negate the Allied speed penalty. He had a very large and advanced air force of fighters, tactical and attack bombers, all level 3-4. He did not invest in a navy, since he didn't need one yet. My stacks of cruisers were enough insurance to protect transports during the crossing. After that, the AA were enough of a deterrent.
He did kill some of my single AC, both from the air and with his superior, level 4 AC. Scouting ahead and taking new ground was difficult for a while. Eventually, I had to build interceptors in South America to keep his bombers away from my AC. But he could not dislodge my RRG + AA stacks, and I slowly pushed up the continent. He made a stand in Colombia, but the power and range of Axis RRG broke his artillery to pieces. After that, I was fighting his newly built stacks of RRG in Central America and Mexico, but my RRG had both better quantity and quality.
Undaunted wrote:
your enemy had a big area to invade with railroad guns he had no nuclear rockets even his advantage with allied doctrine ?probably he had only one target not 50 artillery with different stacks
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he could try to use some rockets to slow down your railroad guns even
This was happening before nuclear bombers were available. Anyway, those are easy to shoot down with AA. Nuclear rockets were far away. By the time those were available, the enemy was defeated and gone inactive.
My stacks had enough HP to absorb damage. Rockets are very inefficient. You can't hurt a large army with rockets. Those are only useful against transports, on land or on water. Or against airfields. But they are ineffective against hard targets. For example, I can build a tank for the price of a rocket, and the tank can absorb the rocket hit and keep going while the rocket is gone. Getting them to the front is also quite painful, and they are very vulnerable during transport.
Undaunted wrote:
railroad gun damage is not too much and it needs time to fire , it can't hold many enemy stackespecially if you have weak stacks against air units in front of them , and no artillery protection for railroad guns
I think artillery is important to protect railroad guns as anti air as
so railroad guns can focus to enemy artilleries while your artilleries are attacking to enemy ground units
railroad gun is mainly artillery killer not killer of melee units
A stack of 10 Axis RRG does a crap ton of damage. I had 3 such stacks at the start of the invasion, and by the end I had 5 stacks. That's a lot of damage output. They are slow, but the slower the terrain the better they work. It means they have more time to reload.
One important tactic is to take the ground ahead of the RRG so they travel at full (turtle) speed instead of half (turtle) speed. This makes it difficult for enemies to approach. Also keep in mind that Axis AA guns are quite good against armor, especially heavy armor. So if the enemy decides to rush a large stack of tanks, you can always split off the AA in an emergency and block them. This works especially well in hills and cities, where AA get a terrain bonus. It's better to have some ground units in reserve, of course, and I did.
RRG are especially deadly against artillery, but if you look at their stats, what they really excel in is killing heavy armor. That covers both motorized artillery, as well as tank destroyers, medium tanks, and heavy tanks. A large stack of infantry will survive longer against them, but they will move more slowly, thus taking more hits on the way.... and in the end, everything dies.
Undaunted wrote:
I guess your experienced enemy made a lot of mistake at war
Tactically, the enemy was very sound. He couldn't do any better than he did, with the research he had invested in. He was committed to air power and motorized artillery and AC's and he did very, very well against every other opponent on the map. He beat a strong coalition in North America, on his own.
His only mistake was not adjusting his build strategy sooner. He thought he could isolate my separate RRG stacks and rush them with 2-3 stacks of his own artillery. That didn't work, because I always retreated, and wore him down. He also thought his air force would save him, but he underestimated the power of leveled up Axis AA. They were dealing far more damage than his bombers could take, and he gave up on that plan very quickly.
Maybe another thing he could have done was to prevent my landing, but that was really hard. His core was in NW USA, and I was crossing from Africa to Brazil. There wasn't enough time to research and build a navy and move it into position. He had to fight me in the jungles and hills of South America, where he couldn't move fast enough to approach my RRG stacks. So he slowly got bled to death and pushed into the sea. He made a last stand with RRG of his own in Mexico, but I had 3x as many and mine were superior in power and range. He didn't land a single hit, only got a few of my AC that were always running around taking land, slowing him down.